--- In
yamahacs80@yahoogroups.com, rj krohn <r_j_d_2.phila@...> wrote:
>
> if it stopped working at a point that doesnt coincide with you opening the machine up, then "something has failed" would be my first assumption. if your voltages are reading properly on the aftertouch board, that's another vote towards component failure.
I will probably redo the whole boards. I just wasn't sure if one components failure would kill the aftertouch on every key for VCO, VCF and VCA.
> also, remember that sustaining a voice and switching thru presets doesnt exercise the envelopes, so the surefire process of elimination is to trigger the faulty voice on numerous presets.
That was also the case. I tried it every way hitting the key over and over, switching presets, back again went to panel and out.